sys_yield
{ .sy_narg = 0, .sy_call = (sy_call_t *)sys_yield, .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 321 = yield */
{ .sy_narg = 0, .sy_call = (sy_call_t *)sys_yield, .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 321 = yield */
int sys_yield(struct thread *, struct yield_args *);